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Finding the Fourth Proportional to 7,503.48, 10,348.90 and 7,000.47

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Solution

The fourth proportional to 7,503.48, 10,348.90 and 7,000.47 is: 9,655.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.48 : 10,348.90 = 7,000.47 : x
  2. Step 2: Convert to fraction form
    7,503.48/10,348.90 = 7,000.47/x
  3. Step 3: Cross multiply
    7,503.48x = 10,348.90 × 7,000.47
  4. Step 4: Simplify right side
    7,503.48x = 72,447,146.48
  5. Step 5: Solve for x
    x = 72,447,146.48/7,503.48
  6. Step 6: Final answer
    x = 9,655.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.